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Rainwater's Role in Stabilizing Protocells UPSC NOTE

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  Why in news A study published in the journal ‘Science Advances’ suggests that rainwater may have played a crucial role in stabilizing ear...

 Why in news

  • A study published in the journal ‘Science Advances’ suggests that rainwater may have played a crucial role in stabilizing early cell-like structures called protocells, potentially aiding the origin of life.

Potential Role of Rainwater in Stabilizing Protocells

  • Rainwater, being free of dissolved ions, helps prevent coacervate droplets (a type of protocell) from fusing together, which allows them to maintain their structure and compartmentalization.

  • This stabilization helps keep genetic material, such as RNA, confined within the protocells, promoting the conditions needed for early life processes.

What are Protocells?

  • Protocells are primitive, cell-like structures that likely emerged from organic molecules on early Earth, acting as precursors to modern cells.

  • They consist of a matrix material for structure and genetic material for functioning and replication.

Two Proposed Models for Protocells

  1. Vesicles:

  • Formed from lipid molecules that create tiny bubbles.

  • Can encapsulate chemicals but lack specialized proteins for interaction, limiting their functionality.


2) Coacervates:

  • Droplets formed by the aggregation of organic molecules, such as peptides and nucleic acids.

  • Lack a membrane, allowing for easier exchange of materials but risking uncontrolled mixing of genetic material, which could hinder evolution.



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Learnerz IAS | Concept oriented UPSC Classes in Malayalam: Rainwater's Role in Stabilizing Protocells UPSC NOTE
Rainwater's Role in Stabilizing Protocells UPSC NOTE
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